#include "shoes.h"
#include <vector>
#include <queue>
#include <algorithm>
#include <iostream>
#include <string>
#include <bitset>
#include <map>
#include <set>
#include <tuple>
#include <string.h>
#include <random>
#include <functional>
#include <assert.h>
#include <math.h>
#define all(x) (x).begin(), (x).end()
#define xx first
#define yy second
using namespace std;
using i64 = long long int;
using ii = pair<int, int>;
using ii64 = pair<i64, i64>;
constexpr int clog2(int n) { return ((n < 2) ? 1 : 1 + clog2(n / 2)); }
template<typename T, typename Merge>
class SegmentTree
{
public:
SegmentTree(Merge m)
:merge(m) {}
void init(vector<T>& raw_)
{
raw = raw_;
n = (int)raw.size();
int sz = (1 << (clog2(n) + 1));
data.resize(sz);
_init(raw, 1, 0, n - 1);
}
T modify(int idx, function<T(T)> modifier) { return update(idx, modifier(raw[idx])); }
T update(int idx, const T& newVal) { raw[idx] = newVal; return _update(1, 0, n - 1, idx, newVal); }
T query(int left, int right) { return _query(1, 0, n - 1, left, right); }
private:
vector<T> raw;
vector<T> data;
int n;
Merge merge;
T _init(vector<T>& raw, int node, int start, int end)
{
int mid = (start + end) / 2;
if (start == end)
return data[node] = raw[start];
else
return data[node] = merge(_init(raw, node * 2, start, mid),
_init(raw, node * 2 + 1, mid + 1, end));
}
T _update(int node, int start, int end, int index, const T& newVal)
{
if (index < start || index > end)
return data[node];
if (start == end)
data[node] = newVal;
else
{
int mid = (start + end) / 2;
data[node] = merge(_update(node * 2, start, mid, index, newVal),
_update(node * 2 + 1, mid + 1, end, index, newVal));
}
return data[node];
}
T _query(int node, int start, int end, int left, int right)
{
if (left <= start && end <= right)
return data[node];
int mid = (start + end) / 2;
if (mid < left)
return _query(node * 2 + 1, mid + 1, end, left, right);
if (mid + 1 > right)
return _query(node * 2, start, mid, left, right);
return merge(_query(node * 2, start, mid, left, right),
_query(node * 2 + 1, mid + 1, end, left, right));
}
};
template<typename T, typename Merge>
SegmentTree<T, Merge> segTree(Merge merge)
{
return SegmentTree<T, Merge>(merge);
}
set<int> mi[100005];
set<int> pl[100005];
long long count_swaps(vector<int> s) {
vector<bool> used(s.size(), false);
long long ans = 0;
vector<int> raw(s.size(), 1);
auto tree = segTree<int>([](const int& l, const int& r) { return l + r; });
tree.init(raw);
for (int i = 0; i < s.size(); i++)
{
if (s[i] > 0)
pl[s[i]].insert(i);
else
mi[-s[i]].insert(i);
}
for (int i = 0; i < s.size(); i++)
{
if (used[i])
continue;
if (s[i] > 0)
{
int near = *mi[s[i]].lower_bound(i);
mi[s[i]].erase(near);
used[near] = true;
ans += tree.query(0, near) - tree.query(0, i);
tree.update(near, 0);
}
else
{
int near = *pl[-s[i]].lower_bound(i);
pl[-s[i]].erase(near);
used[near] = true;
ans += tree.query(0, near) - tree.query(0, i) - 1;
tree.update(near, 0);
}
}
return ans;
}
Compilation message
shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:118:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < s.size(); i++)
~~^~~~~~~~~~
shoes.cpp:126:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < s.size(); i++)
~~^~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9632 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9632 KB |
Output is correct |
3 |
Correct |
10 ms |
9720 KB |
Output is correct |
4 |
Correct |
10 ms |
9720 KB |
Output is correct |
5 |
Correct |
11 ms |
9720 KB |
Output is correct |
6 |
Correct |
10 ms |
9720 KB |
Output is correct |
7 |
Correct |
10 ms |
9720 KB |
Output is correct |
8 |
Correct |
10 ms |
9720 KB |
Output is correct |
9 |
Correct |
10 ms |
9720 KB |
Output is correct |
10 |
Correct |
11 ms |
9720 KB |
Output is correct |
11 |
Correct |
10 ms |
9724 KB |
Output is correct |
12 |
Correct |
10 ms |
9720 KB |
Output is correct |
13 |
Correct |
10 ms |
9720 KB |
Output is correct |
14 |
Correct |
10 ms |
9720 KB |
Output is correct |
15 |
Correct |
10 ms |
9720 KB |
Output is correct |
16 |
Correct |
10 ms |
9720 KB |
Output is correct |
17 |
Correct |
10 ms |
9724 KB |
Output is correct |
18 |
Correct |
10 ms |
9720 KB |
Output is correct |
19 |
Correct |
11 ms |
9720 KB |
Output is correct |
20 |
Correct |
11 ms |
9720 KB |
Output is correct |
21 |
Correct |
11 ms |
9784 KB |
Output is correct |
22 |
Correct |
10 ms |
9720 KB |
Output is correct |
23 |
Correct |
11 ms |
9720 KB |
Output is correct |
24 |
Correct |
10 ms |
9720 KB |
Output is correct |
25 |
Correct |
10 ms |
9720 KB |
Output is correct |
26 |
Correct |
10 ms |
9720 KB |
Output is correct |
27 |
Correct |
10 ms |
9720 KB |
Output is correct |
28 |
Correct |
10 ms |
9720 KB |
Output is correct |
29 |
Correct |
10 ms |
9688 KB |
Output is correct |
30 |
Correct |
10 ms |
9720 KB |
Output is correct |
31 |
Correct |
10 ms |
9720 KB |
Output is correct |
32 |
Correct |
11 ms |
9640 KB |
Output is correct |
33 |
Correct |
10 ms |
9720 KB |
Output is correct |
34 |
Correct |
10 ms |
9720 KB |
Output is correct |
35 |
Correct |
11 ms |
9724 KB |
Output is correct |
36 |
Correct |
10 ms |
9720 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9632 KB |
Output is correct |
3 |
Correct |
10 ms |
9720 KB |
Output is correct |
4 |
Correct |
10 ms |
9720 KB |
Output is correct |
5 |
Correct |
10 ms |
9720 KB |
Output is correct |
6 |
Correct |
10 ms |
9720 KB |
Output is correct |
7 |
Correct |
10 ms |
9720 KB |
Output is correct |
8 |
Correct |
10 ms |
9720 KB |
Output is correct |
9 |
Correct |
10 ms |
9720 KB |
Output is correct |
10 |
Correct |
11 ms |
9720 KB |
Output is correct |
11 |
Correct |
11 ms |
9724 KB |
Output is correct |
12 |
Correct |
10 ms |
9720 KB |
Output is correct |
13 |
Correct |
10 ms |
9720 KB |
Output is correct |
14 |
Correct |
10 ms |
9720 KB |
Output is correct |
15 |
Correct |
10 ms |
9720 KB |
Output is correct |
16 |
Correct |
11 ms |
9720 KB |
Output is correct |
17 |
Correct |
11 ms |
9720 KB |
Output is correct |
18 |
Correct |
11 ms |
9852 KB |
Output is correct |
19 |
Correct |
14 ms |
9848 KB |
Output is correct |
20 |
Correct |
22 ms |
11256 KB |
Output is correct |
21 |
Correct |
22 ms |
11256 KB |
Output is correct |
22 |
Correct |
139 ms |
24284 KB |
Output is correct |
23 |
Correct |
153 ms |
24324 KB |
Output is correct |
24 |
Correct |
145 ms |
24440 KB |
Output is correct |
25 |
Correct |
144 ms |
24440 KB |
Output is correct |
26 |
Correct |
135 ms |
24396 KB |
Output is correct |
27 |
Correct |
153 ms |
24408 KB |
Output is correct |
28 |
Correct |
149 ms |
24440 KB |
Output is correct |
29 |
Correct |
146 ms |
24312 KB |
Output is correct |
30 |
Correct |
147 ms |
24368 KB |
Output is correct |
31 |
Correct |
139 ms |
24412 KB |
Output is correct |
32 |
Correct |
143 ms |
24312 KB |
Output is correct |
33 |
Correct |
144 ms |
24312 KB |
Output is correct |
34 |
Correct |
145 ms |
24312 KB |
Output is correct |
35 |
Correct |
11 ms |
9720 KB |
Output is correct |
36 |
Correct |
10 ms |
9724 KB |
Output is correct |
37 |
Correct |
146 ms |
24312 KB |
Output is correct |
38 |
Correct |
143 ms |
24284 KB |
Output is correct |
39 |
Correct |
145 ms |
24488 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9720 KB |
Output is correct |
3 |
Correct |
11 ms |
9720 KB |
Output is correct |
4 |
Correct |
10 ms |
9720 KB |
Output is correct |
5 |
Correct |
139 ms |
24444 KB |
Output is correct |
6 |
Correct |
168 ms |
24444 KB |
Output is correct |
7 |
Correct |
135 ms |
24312 KB |
Output is correct |
8 |
Correct |
131 ms |
24312 KB |
Output is correct |
9 |
Correct |
135 ms |
24284 KB |
Output is correct |
10 |
Correct |
152 ms |
24440 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9632 KB |
Output is correct |
3 |
Correct |
10 ms |
9720 KB |
Output is correct |
4 |
Correct |
10 ms |
9720 KB |
Output is correct |
5 |
Correct |
11 ms |
9720 KB |
Output is correct |
6 |
Correct |
10 ms |
9720 KB |
Output is correct |
7 |
Correct |
10 ms |
9720 KB |
Output is correct |
8 |
Correct |
10 ms |
9720 KB |
Output is correct |
9 |
Correct |
10 ms |
9720 KB |
Output is correct |
10 |
Correct |
11 ms |
9720 KB |
Output is correct |
11 |
Correct |
10 ms |
9724 KB |
Output is correct |
12 |
Correct |
10 ms |
9720 KB |
Output is correct |
13 |
Correct |
10 ms |
9720 KB |
Output is correct |
14 |
Correct |
10 ms |
9720 KB |
Output is correct |
15 |
Correct |
10 ms |
9720 KB |
Output is correct |
16 |
Correct |
10 ms |
9720 KB |
Output is correct |
17 |
Correct |
10 ms |
9724 KB |
Output is correct |
18 |
Correct |
10 ms |
9720 KB |
Output is correct |
19 |
Correct |
11 ms |
9720 KB |
Output is correct |
20 |
Correct |
11 ms |
9720 KB |
Output is correct |
21 |
Correct |
11 ms |
9784 KB |
Output is correct |
22 |
Correct |
10 ms |
9720 KB |
Output is correct |
23 |
Correct |
11 ms |
9720 KB |
Output is correct |
24 |
Correct |
10 ms |
9720 KB |
Output is correct |
25 |
Correct |
10 ms |
9720 KB |
Output is correct |
26 |
Correct |
10 ms |
9720 KB |
Output is correct |
27 |
Correct |
10 ms |
9720 KB |
Output is correct |
28 |
Correct |
10 ms |
9720 KB |
Output is correct |
29 |
Correct |
10 ms |
9688 KB |
Output is correct |
30 |
Correct |
10 ms |
9720 KB |
Output is correct |
31 |
Correct |
10 ms |
9720 KB |
Output is correct |
32 |
Correct |
11 ms |
9640 KB |
Output is correct |
33 |
Correct |
10 ms |
9720 KB |
Output is correct |
34 |
Correct |
10 ms |
9720 KB |
Output is correct |
35 |
Correct |
11 ms |
9724 KB |
Output is correct |
36 |
Correct |
10 ms |
9720 KB |
Output is correct |
37 |
Correct |
10 ms |
9720 KB |
Output is correct |
38 |
Correct |
10 ms |
9720 KB |
Output is correct |
39 |
Correct |
10 ms |
9720 KB |
Output is correct |
40 |
Correct |
11 ms |
9720 KB |
Output is correct |
41 |
Correct |
11 ms |
9848 KB |
Output is correct |
42 |
Correct |
12 ms |
9848 KB |
Output is correct |
43 |
Correct |
11 ms |
9848 KB |
Output is correct |
44 |
Correct |
11 ms |
9848 KB |
Output is correct |
45 |
Correct |
11 ms |
9848 KB |
Output is correct |
46 |
Correct |
12 ms |
9848 KB |
Output is correct |
47 |
Correct |
11 ms |
9848 KB |
Output is correct |
48 |
Correct |
12 ms |
9976 KB |
Output is correct |
49 |
Correct |
11 ms |
9848 KB |
Output is correct |
50 |
Correct |
12 ms |
9848 KB |
Output is correct |
51 |
Correct |
11 ms |
9848 KB |
Output is correct |
52 |
Correct |
12 ms |
9848 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
10 ms |
9720 KB |
Output is correct |
2 |
Correct |
10 ms |
9632 KB |
Output is correct |
3 |
Correct |
10 ms |
9720 KB |
Output is correct |
4 |
Correct |
10 ms |
9720 KB |
Output is correct |
5 |
Correct |
11 ms |
9720 KB |
Output is correct |
6 |
Correct |
10 ms |
9720 KB |
Output is correct |
7 |
Correct |
10 ms |
9720 KB |
Output is correct |
8 |
Correct |
10 ms |
9720 KB |
Output is correct |
9 |
Correct |
10 ms |
9720 KB |
Output is correct |
10 |
Correct |
11 ms |
9720 KB |
Output is correct |
11 |
Correct |
10 ms |
9724 KB |
Output is correct |
12 |
Correct |
10 ms |
9720 KB |
Output is correct |
13 |
Correct |
10 ms |
9720 KB |
Output is correct |
14 |
Correct |
10 ms |
9720 KB |
Output is correct |
15 |
Correct |
10 ms |
9720 KB |
Output is correct |
16 |
Correct |
10 ms |
9720 KB |
Output is correct |
17 |
Correct |
10 ms |
9724 KB |
Output is correct |
18 |
Correct |
10 ms |
9720 KB |
Output is correct |
19 |
Correct |
11 ms |
9720 KB |
Output is correct |
20 |
Correct |
11 ms |
9720 KB |
Output is correct |
21 |
Correct |
11 ms |
9784 KB |
Output is correct |
22 |
Correct |
10 ms |
9720 KB |
Output is correct |
23 |
Correct |
11 ms |
9720 KB |
Output is correct |
24 |
Correct |
10 ms |
9720 KB |
Output is correct |
25 |
Correct |
10 ms |
9720 KB |
Output is correct |
26 |
Correct |
10 ms |
9720 KB |
Output is correct |
27 |
Correct |
10 ms |
9720 KB |
Output is correct |
28 |
Correct |
10 ms |
9720 KB |
Output is correct |
29 |
Correct |
10 ms |
9688 KB |
Output is correct |
30 |
Correct |
10 ms |
9720 KB |
Output is correct |
31 |
Correct |
10 ms |
9720 KB |
Output is correct |
32 |
Correct |
11 ms |
9640 KB |
Output is correct |
33 |
Correct |
10 ms |
9720 KB |
Output is correct |
34 |
Correct |
10 ms |
9720 KB |
Output is correct |
35 |
Correct |
11 ms |
9724 KB |
Output is correct |
36 |
Correct |
10 ms |
9720 KB |
Output is correct |
37 |
Correct |
10 ms |
9720 KB |
Output is correct |
38 |
Correct |
10 ms |
9720 KB |
Output is correct |
39 |
Correct |
10 ms |
9720 KB |
Output is correct |
40 |
Correct |
10 ms |
9720 KB |
Output is correct |
41 |
Correct |
10 ms |
9720 KB |
Output is correct |
42 |
Correct |
10 ms |
9720 KB |
Output is correct |
43 |
Correct |
10 ms |
9720 KB |
Output is correct |
44 |
Correct |
11 ms |
9720 KB |
Output is correct |
45 |
Correct |
11 ms |
9724 KB |
Output is correct |
46 |
Correct |
10 ms |
9720 KB |
Output is correct |
47 |
Correct |
10 ms |
9720 KB |
Output is correct |
48 |
Correct |
10 ms |
9720 KB |
Output is correct |
49 |
Correct |
10 ms |
9720 KB |
Output is correct |
50 |
Correct |
11 ms |
9720 KB |
Output is correct |
51 |
Correct |
11 ms |
9720 KB |
Output is correct |
52 |
Correct |
11 ms |
9852 KB |
Output is correct |
53 |
Correct |
14 ms |
9848 KB |
Output is correct |
54 |
Correct |
22 ms |
11256 KB |
Output is correct |
55 |
Correct |
22 ms |
11256 KB |
Output is correct |
56 |
Correct |
139 ms |
24284 KB |
Output is correct |
57 |
Correct |
153 ms |
24324 KB |
Output is correct |
58 |
Correct |
145 ms |
24440 KB |
Output is correct |
59 |
Correct |
144 ms |
24440 KB |
Output is correct |
60 |
Correct |
135 ms |
24396 KB |
Output is correct |
61 |
Correct |
153 ms |
24408 KB |
Output is correct |
62 |
Correct |
149 ms |
24440 KB |
Output is correct |
63 |
Correct |
146 ms |
24312 KB |
Output is correct |
64 |
Correct |
147 ms |
24368 KB |
Output is correct |
65 |
Correct |
139 ms |
24412 KB |
Output is correct |
66 |
Correct |
143 ms |
24312 KB |
Output is correct |
67 |
Correct |
144 ms |
24312 KB |
Output is correct |
68 |
Correct |
145 ms |
24312 KB |
Output is correct |
69 |
Correct |
11 ms |
9720 KB |
Output is correct |
70 |
Correct |
10 ms |
9724 KB |
Output is correct |
71 |
Correct |
146 ms |
24312 KB |
Output is correct |
72 |
Correct |
143 ms |
24284 KB |
Output is correct |
73 |
Correct |
145 ms |
24488 KB |
Output is correct |
74 |
Correct |
10 ms |
9720 KB |
Output is correct |
75 |
Correct |
10 ms |
9720 KB |
Output is correct |
76 |
Correct |
11 ms |
9720 KB |
Output is correct |
77 |
Correct |
10 ms |
9720 KB |
Output is correct |
78 |
Correct |
139 ms |
24444 KB |
Output is correct |
79 |
Correct |
168 ms |
24444 KB |
Output is correct |
80 |
Correct |
135 ms |
24312 KB |
Output is correct |
81 |
Correct |
131 ms |
24312 KB |
Output is correct |
82 |
Correct |
135 ms |
24284 KB |
Output is correct |
83 |
Correct |
152 ms |
24440 KB |
Output is correct |
84 |
Correct |
10 ms |
9720 KB |
Output is correct |
85 |
Correct |
10 ms |
9720 KB |
Output is correct |
86 |
Correct |
10 ms |
9720 KB |
Output is correct |
87 |
Correct |
11 ms |
9720 KB |
Output is correct |
88 |
Correct |
11 ms |
9848 KB |
Output is correct |
89 |
Correct |
12 ms |
9848 KB |
Output is correct |
90 |
Correct |
11 ms |
9848 KB |
Output is correct |
91 |
Correct |
11 ms |
9848 KB |
Output is correct |
92 |
Correct |
11 ms |
9848 KB |
Output is correct |
93 |
Correct |
12 ms |
9848 KB |
Output is correct |
94 |
Correct |
11 ms |
9848 KB |
Output is correct |
95 |
Correct |
12 ms |
9976 KB |
Output is correct |
96 |
Correct |
11 ms |
9848 KB |
Output is correct |
97 |
Correct |
12 ms |
9848 KB |
Output is correct |
98 |
Correct |
11 ms |
9848 KB |
Output is correct |
99 |
Correct |
12 ms |
9848 KB |
Output is correct |
100 |
Correct |
12 ms |
9848 KB |
Output is correct |
101 |
Correct |
22 ms |
11256 KB |
Output is correct |
102 |
Correct |
24 ms |
11256 KB |
Output is correct |
103 |
Correct |
219 ms |
24444 KB |
Output is correct |
104 |
Correct |
146 ms |
24312 KB |
Output is correct |
105 |
Correct |
187 ms |
24312 KB |
Output is correct |
106 |
Correct |
133 ms |
24440 KB |
Output is correct |
107 |
Correct |
205 ms |
24384 KB |
Output is correct |
108 |
Correct |
181 ms |
24312 KB |
Output is correct |
109 |
Correct |
127 ms |
24408 KB |
Output is correct |
110 |
Correct |
146 ms |
24312 KB |
Output is correct |
111 |
Correct |
136 ms |
24404 KB |
Output is correct |
112 |
Correct |
177 ms |
24440 KB |
Output is correct |
113 |
Correct |
195 ms |
24440 KB |
Output is correct |
114 |
Correct |
129 ms |
24416 KB |
Output is correct |
115 |
Correct |
135 ms |
24368 KB |
Output is correct |